Microsorum siamensis, often called the blue oil fern, is a mesmerizing epiphytic species from southern Thailand, admired for its iridescent, metallic-blue fronds that shimmer in low light. It thrives in high humidity (80%+), low to medium light, and temperatures between 18–30°C, making it ideal for terrariums or shaded indoor setups. Use a well-draining, mostly inorganic mix—like perlite and orchid bark—and avoid overwatering to prevent root rot while encouraging vibrant coloration
Microsorum siamensis, often called the blue oil fern, is a mesmerizing epiphytic species from southern Thailand, admired for its iridescent, metallic-blue fronds that shimmer in low light. It thrives in high humidity (80%+), low to medium light, and temperatures between 18–30°C, making it ideal for terrariums or shaded indoor setups. Use a well-draining, mostly inorganic mix—like perlite and orchid bark—and avoid overwatering to prevent root rot while encouraging vibrant coloration
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